Simply create your own ads, choosing keywords that help MSN search engine (Live search engine) match the ads to your audience. You pay only when someone clicks on them. Your ads appear not only on the MSN search results pages, but also on the search and content sites in the entire MSN Network. Microsoft Adcenter really is the best way to send targeted visitors directly to your site.

Microsoft adCenter is a robust advertising platform that you will use to build your search campaigns. Once you have an account, you will be provided with the tools, reports, and guidelines you need to build search ads seen by Live Search users

Free Microsoft Adcenter credit of $50 will be given to you when you open a advertising account at Adcenter with minimum payment of $5 which goes towards one-time activation fee to open your account.

**Promotional Guidelines: Offer valid only through April 30, 2007 (midnight Pacific Time), while supplies last. Promotional credit is valid only for new advertisers opening a new account with Microsoft adCenter. *The $50 promotional credit does not apply to the one-time, nonrefundable $5 activation fee required to open a new adCenter account. Promotional credit not redeemed in click spend will expire 90 days after sign-up. Advertisers will be charged for advertising that exceeds the $50 promotional credit. Advertisers will need to suspend their ads if they do not wish to receive additional charges beyond the free credit amount or after 90 days from sign-up. Promotional credit good only to residents in the 50 United States and Washington, D.C. Limit: one promotional credit per customer. Promotional credit may not be combined with any other offer or discount, separated, redeemed for cash, transferred, sold, or bartered.

SIGN UP WITH MICROSOFT ADCENTER PROMOTIONAL CODE: AD4511

How to start the advertising account at adcenter and use the free adcenter credit??